Method of constructing reinforced concrete structures



. E. VAN BAVEGEM.

METHOD OF CONSTRUCTING REINFORCED CONCRETE STRUCTURES.

APPLICATION FILED MAY 21, I919.

1,398,209., Patented Nov. 22, 1921.

3 SHEETS-SHEET I.

WITNESSES I V Bl/VVENTOR dyer am awyei/l.

E. VAN BAVEGEM.

METHOD OF CONSTRUCTING REINFORCED CONCRETE STRUCTURES.

- APPLICATION FILED MAY 21, l9l9. 1,398,209

Patented Nov. 22, 1921.

3 SHEETSSHEET 2.

' WITNESSES IIVVENTOR EdgarVZuz 3a veg/em.

A TTOHll/EYS E. VAN BAVEGEM.

METHOD OF CONSTRUCTING REINFORCED CONCRETE STRUCTURES.

APPLICATION FILED MAY 21. 1919.

1,398,209 Patented Nov. 22, 1921.

W152? fig T lA/I/E/VTOR W Arromms UNITED sTArEs.

PATENT OFFICE.

EDGAR VA'N BAVEGEM, OF OOSTERZEELE, BELGIUM.

METHOD OF CONSTRUCTING REINFORCED CONCRETE STRUCTURES.

Application filed Kay 21,

To all whom it may concern Be it known that I, EDGAR VAN BAvEcEM, asubject of the King of Belgium, and a resident of the village ofOosterzeele, Flanders, Belgium, have invented a new and Improved Methodof Constructing Reinforced Concrete Structures, of which the followingis a full, clear, and exact description.

This invention relates to reinforced concrete structures. According tothe invention, hollow walls of reinforced concrete are molded complete,in a horizontal position, with window casement and door frames, andcornices Where required. The mold receives the concrete to form theoutside wall surface, into which metallic reinforcement with inwardlyprojecting strengthening ribs is laid and covered with concrete, afterwhich the cavities are filled with sand, and an inner wall is formed bymolding over the projecting reinforcing ribs. The sand can then beremoved through openings. Each wall when erected afterward, consists ofinside and outside wall faces with vertical reinforced concreteconnections for strength, both wall faces being completely molded andfinished. Monoblock wall units made in this way are easily joinedtogether and to other parts of the structure, either removably by meansof bolts, or in a permanent manner' with reinforcing bars embedded atthe joints, to make a monoblock structure.

Each wall section made as above described is complete from basement tocornice. It can be transported where necessary, and is very well adaptedfor use in building comparatively s all structures such as cottages orbungalow? Drawings.

frames, base and cornice, ready for use in I the mold; A

Fig. 5 is a perspective view of the inner wall surface;

Figs. 6, 7 8 and 9 show sections of oints between walls, illustratingdifferent methods Specification of Letters Patent.

Patented Nov. 22, 1921. 1919. Serial No. 298,606. v

pf making the joints between the Wall secions; I

F 1g. 10 shows in section the top of a wall with a pro ecting terrace,and it also illustrates part of a reinforced concrete ceiling;

Fig. 11 shows in vertical section a completfe wall, and a part of aceiling, and fiat roo Flg. 12 shows in horizontal section parts of thewalls, both external and internal, of a house.

Desomlption.

The horizontal mold as in Fig. 1, is prepared as follows: It has a thickbed a of clay, for example, or any other suitable molding materlal, andtwo retaining walls 5 and c. On this are arranged four adjustable wallsor boards d, e, f,g, which are adjusted according to the dimensions ofthe wall section to be made.

In molding an outside wall, I press into the layer a the properly shapedmolding forms, using a flatbottomed press. The press and the forms areremoved, and the shaped clay surface is coated with oil or the like toprevent the concrete from adhering to the clay; then, with the retainingboards d, e, f, g, properly adjusted, I run in the first layer ofconcrete. When the concrete layer has been introduced, I insert asin-Figs. 2 and 3, the metallic reinforcing structure it, formed ofsuitable material such as metal net. and shaped as seen'in Fig. 4 forinstance. This structure may be provided with a base 2', a cornice 7',window and door frames is, Z, and several vertical reinforcing ribs m.It also has rings or staples n projecting beyond the ribs and servingfor lifting and transporting the wall when molded. When this reinforcingstructure is laid on the first layer of concrete, another run ofconcrete is applied over it to embed it, the concrete being shaped upover the projecting ribs with a suitable tool to incase them up to aboutan inch from the top.

When this part of the molding is finished, the spaces between thereinforcing ribs and the like are filled in with sand as high as theconcrete on the reinforcing ribs, 2'. 'e., about an inch from the top;then a flat metallic reinforcing net-work with window and door aperturesis attached over the surface of the molded portion, and is embedded in alayer of concrete or cement, stucco, or

the like, which is run over it to form the inner wall surface 17. Thissurface is finished in any way required, with or without shapedmoldings. Any door or window frames are inserted with the outsidereinforcing network and thus embedded in the outer walljlayer, pro'ectinthrough to the inner layer. When t ewa l is set, the sand is taken outthrough the 0 en ends of the cavities at the top end 0 the wall, andthrough openings 0 left in the inner wall surface where necessary as inFig. 5. The complete wall can then be lifted by tackle attached to therings n exposed through holes y in the inner wall surface, andtransported to the place where the building is to be erected.

Wall sections canv be joined together in.

the structure to form either removable or permanent connections asrequired. Figs.

are embedded angle bars of L or T shape as re uired, at suitabledistances apart.

emovable joints are made as in Figs. 8 and 9; holes to receive bolts areformed at suitable intervals in the wall ends, and bolts and ties r, sare used to hold the sections together. The space in the gaps t isfilled in with concrete, as seen in Fig. 12.

The ceilings '0 may be made up of slabs molded in a similar manner tothe walls, and of a length sufiicient to extend over the whole length ofthe space to be covered, while their width may be any convenient unit.Adjacent slabs fit together with joggled joints as at a, Fig. 10. If aprojecting coping or terrace is to be provided, the tops of the wallsare surmounted with blocks formed with projecting portions w. If a flatroof is needed, this is made up in sections w fitted together insuitable widths as in Fig. 11.

The complete building forms thus a unitary structure made up of readymolded monoblock sections, and the labor of erection is made as simpleas possible. In the example of construction illustrated, the reinforcingnetwork for the wall is flat, with Claims.

, l. The herein described method of constructing concrete wallsconsisting in shaping a recumbent mold having a bed of clay, coating theclay with oil, pouring 'a thin layer of concrete into the mold, thenplacing on the first layer-of concrete a ribbed reinforcingstructure'having door and window frames conforming to the shape of themold and having upwardly projecting staples attached thereto, thenpouring in a second thin layer of concrete to embed the edges of thereinforcing structure, then placing a layer of sand uponth'e concrete,leaving only the edges of the reinforcing structure and the staplesexposed, then pouring in another layer of concrete and leaving openingsin this last mentioned layer to expose the staples, then raising thewall and removing.

the sand. 7 g

2. The herein described method of constructing concrete walls consistingin shap- .ing a recumbent mold having a bed of clay,

coating the clay with oil, pouring a thin layer of concrete into themold, then placing on the first layer of concrete a ribbed reinforcingstructure having door and window frames conforming to .the shape of themold and having upwardly projecting staples attached thereto, thenpouring in a second thin layer of concrete to embed the edges of thereinforcing structure, then placing a layer of sand upon the concrete,leaving only the edges of the reinforcing structure and the staplesexposed, then pouring in another layer of concrete and leaving openingsin this last mentioned layer to expose the staples, then attachingsuitable hoisting apparatus to the staples and raising the wall and thenremoving the sand.

EDGAR VAN BAVEGEM. Witnesses for si nature only: Emu. VoN ONSIELE, CARLC. LUMRY.

